54173491 has 2 divisors, whose sum is σ = 54173492. Its totient is φ = 54173490.

The previous prime is 54173447. The next prime is 54173531. The reversal of 54173491 is 19437145.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54173491 - 2²³ = 45784883 is a prime.

It is not a weakly prime, because it can be changed into another prime (54173411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27086745 + 27086746.

It is an arithmetic number, because the mean of its divisors is an integer number (27086746).

Almost surely, 2^54173491 is an apocalyptic number.

54173491 is a deficient number, since it is larger than the sum of its proper divisors (1).

54173491 is an equidigital number, since it uses as much as digits as its factorization.

54173491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 54173491 is about 7360.2643294925. The cubic root of 54173491 is about 378.3806692095.

The spelling of 54173491 in words is "fifty-four million, one hundred seventy-three thousand, four hundred ninety-one".